Hawaiian Airlines flight attendants have ratified an agreement reached earlier this month between the airline and the Association of Flight Attendants on new contract terms covering the operation of long-range, single-aisle aircraft the airline plans to acquire to fly between Hawaii and the West Coast, the airline said Wednesday.

Hawaiian Airlines, a subsidiary of Hawaiian Holdings Inc. (Nasdaq: HA), last month announced the signing of a memorandum of understanding with Airbus to acquire 16 new A321neo aircraft between 2017 and 2020, with the rights to purchase an additional nine aircraft.

The acquisitions were contingent upon the signing of new agreements with Hawaiian’s pilots’ and flight attendants’ unions covering operation of the new aircraft type.

The airline says the fleet expansion is expected to generate about 1,000 new jobs.

Terms of the agreement were not disclosed, but the aircraft have a total list-price value of approximately $2.8 billion if all of the purchase rights are exercised.

“Everyone at Hawaiian wants us to keep our position as the market leader in service quality, cost efficiency and choice of destinations and ordering the A321neo will secure this legacy on routes between the U.S. West Coast and Hawaii beyond the middle of this decade,” Mark Dunkerley, president and CEO of Hawaiian Airlines, said in a statement.